Parameter processing

Is there a reason why [numeric parameters](https://github.com/lphuberdeau/Neo4j-PHP-OGM/blob/master/lib/HireVoice/Neo4j/Query/ParameterProcessor.php#L70) are not handled as named parameters?

As I understand the [docs](http://docs.neo4j.org/chunked/milestone/cypher-parameters.html#_node_id) say they can be used instead of id's and are also encouraged.

Is there something more to it, or can it be changed?